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WorksheetsUnit 1: Atoms and the Periodic Table
Total questions: 20
Worksheet time: 10mins
Protons, neutrons, and electrons are:
Atoms
Elements
Compounds
Subatomic particles
Which of these is not in the nucleus of an atom?
Protons
Neutrons
Electrons
Select a subatomic particle that has a charge.
Electrons
Protons
Neutrons
An atom has 16 electrons. This means it will have (a) energy levels.
The columns on the periodic table are called:
Families
Systems
Groups
Periods
The atomic number represents the number of:
Neutrons
Energy shells
Protons
Protons + Neutrons
Groups/families are categorized by:
Energy levels
Valence electrons
Atomic mass
Electrons
How many protons does hydrogen have? (First element of the periodic table)
3
1
1/8
8
Valence electrons change an element's:
Reactivity
Name
Nucleus
Atomic number
Valence electrons are:
Total electrons
Electrons on the outermost shell
Positively-charged Electrons
Electrons + Protons
M.A.N stands for:
Mass - Atomic Number = Neutrons
Mass + Atomic Number = Neutrons
Mass = Atomic Number = Neutrons
A.P.E stands for:
Atomic Number - Protons = Electrons
Atomic Number + Protons = Electrons
Atomic Number = Protons = Electrons
If you can't read the numbers of an element, you can still identify it by:
Guessing
The symbol/name
The font
The text size
A nucleus along with an electron cloud makes a(n):
Precipitate
Atomic Mass
Element
Atom
Unlike a proton, an electron's charge is:
Negative
Positive
Neutral/None
An element has 2 valence electrons. This means it would be in group (a) .
The atomic mass equals:
Protons + Neutrons + Electrons
Protons + Electrons
Neutrons + Electrons
Protons + Neutrons
Which of these does not help form an atom?
A period
Neutrons
An electron cloud
Protons
The atomic number equals:
Energy shells
Neutrons
Protons
Electrons
An electron is worth:
No mass
1 mass
1/2000 mass
1/8 mass
